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CEN

EN 12334:2001

(Main)

Industrial valves - Cast iron check valves

Industrial valves - Cast iron check valves

This European Standard specifies requirements for cast iron check valves having flanged end connections or wafer type bofy, with either metallic or resilient seating, in nominal sizes DN40 to DN1000 and nominal pressure ratings PN6 to PN40, Class 125, and Class 250 and in pivoting, linear, diaphragm or ball type.

Industriearmaturen - Rückflussverhinderer aus Gusseisen

Diee Norm legt Anforderungen fest für Rückflußverhinderer aus Gußeisen mit Flanschanschlüssen oder Einklemmgehäuse, mit metallischen oder elastischen Sitzen, DN 40 bis DN 1000 und PN 6 bis PN 40, Class 125, Class 250, mit drehendem Abschlußkörper, linear beweglichem Abschlußkörper, mit Membranabschlußkörper oder Kugelrückschlagklappe.

Robinetterie industrielle - Clapets de non-retour en fonte

La présente norme spécifie les exigences pour les clapets de non-retour en fonte ayant des extrémités de raccordement à brides circulaires ou un corps de type à insérer, à siège métallique ou souple, de DN 40 à DN 1000, de PN 6 à PN 40, de Class 125 et de Class 250; de type pivotant, à déplacement linéaire, à membrane ou à boule.

Industrijski ventili - Protipovratni ventili iz jeklenih litin

General Information

Status
Withdrawn
Publication Date
23-Jan-2001
Withdrawal Date
19-Apr-2016
ICS
23.060.50 - Check valves
Technical Committee
CEN/TC 69 - Industrial valves
Drafting Committee
CEN/TC 69/WG 6 - Check valves
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
20-Apr-2016
Directive
97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
Mandate
M/071 - Mandate to CEN for standardization in the field of Pressure equipment
Ref Project
SIST EN 12334:2001 - Industrial valves - Cast iron check valves

Relations

Replaced By
EN 16767:2016 - Industrial valves - Steel and cast iron check valves
Effective Date
27-Apr-2016
Amended By
EN 12334:2001/A1:2004 - Industrial valves - Cast iron check valves
Effective Date
08-Jun-2022
Corrected By
EN 12334:2001/AC:2002 - Industrial valves - Cast iron check valves
Effective Date
08-Jun-2022

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Standards Content (Sample)


SLOVENSKI STANDARD
01-december-2001
Industrijski ventili - Protipovratni ventili iz jeklenih litin
Industrial valves - Cast iron check valves
Industriearmaturen - Rückflussverhinderer aus Gusseisen
Robinetterie industrielle - Clapets de non-retour en fonte
Ta
...

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Additional requirements given in the relevant application standards may apply to check valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the gas distribution industry).
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NOTE 1   Double disc type and tilting disc type are also based on butterfly valve and are in the scope of this document.
The range of nominal sizes covered is:
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DN 8 and DN 12 are not used for PN designated flanged end connections.
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Socket welding end check valves and threaded end check valves are limited to the range DN 8 to DN 65.
The range of nominal diameters for capillary and compression end valves is 6 mm to 110 mm.
The range of pressure designations covered is:
a)   for flanged end and wafer type end cast iron bodies:
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b)   for flanged end, wafer type and butt welding end bodies in steel materials:
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DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
DN 750 is used for Class designated check valves only.
Socket welding end check valves and threaded end check valves are limited to the range DN 8 to DN 65.
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-   Class 150; Class 300; Class 600; Class 900; Class 1 500; Class 2 500;
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-   Class 600; Class 800.
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d)   for flanged end and wafer type bodies in copper alloy materials:
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-   Class 150; Class 300;
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-   PN 16; PN 20; PN 25; PN 32; PN 40;
-   Class 125; Class 250.
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